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How to use install method of org.jmock.test.acceptance.MockeryFinalizationAcceptanceTests class

Best Jmock-library code snippet using org.jmock.test.acceptance.MockeryFinalizationAcceptanceTests.install

Source:MockeryFinalizationAcceptanceTests.java

...26    private final ErrorStream capturingErr = new ErrorStream();27    @BeforeAll28    public static void clearAnyOutstandingMessages() {29        ErrorStream localErr = new ErrorStream();30        localErr.install();31        String error = null;32        try {33            finalizeUntilMessageOrCount(localErr, FINALIZE_COUNT);34            error = localErr.output();35        } finally {36            localErr.uninstall();37        }38        if (error != null)39            System.err.println("WARNING - a previous test left output in finalization [" + error + "]");40    }41    @BeforeEach42    public void captureSysErr() {43        capturingErr.install();44    }45    @AfterEach46    public void replaceSysErr() {47        capturingErr.uninstall();48    }49    @ParameterizedTest50    @ArgumentsSource(ImposteriserParameterResolver.class)51    public void mockedInterfaceDoesntWarnOnFinalize(Imposteriser imposterImpl) {52        mockery.setImposteriser(imposterImpl);53        54        checkNoFinalizationMessage(mockery, CharSequence.class);55    }56    @ParameterizedTest57    @ArgumentsSource(CodeGeneratingImposteriserParameterResolver.class)58    public void mockedClassDoesntWarnOnFinalize(Imposteriser imposterImpl) {59        mockery.setImposteriser(imposterImpl);60        checkNoFinalizationMessage(mockery, Object.class);61    }62    public interface TypeThatMakesFinalizePublic {63        public void finalize();64    }65    @ParameterizedTest66    @ArgumentsSource(ImposteriserParameterResolver.class)67    public void mockedTypeThatMakesFinalizePublicDoesntWarnOnFinalize(Imposteriser imposterImpl) {68        mockery.setImposteriser(imposterImpl);69        checkNoFinalizationMessage(mockery, TypeThatMakesFinalizePublic.class);70    }71    private void checkNoFinalizationMessage(Mockery mockery, Class<?> typeToMock) {72        WeakReference<Object> mockHolder = new WeakReference<Object>(mockery.mock(typeToMock));73        while (mockHolder.get() != null) {74            System.gc();75            System.runFinalization();76        }77        finalizeUntilMessageOrCount(capturingErr, FINALIZE_COUNT);78        assertThat(capturingErr.output(), isEmptyOrNullString());79    }80    private static void finalizeUntilMessageOrCount(ErrorStream capturingErr, int count) {81        for (int i = 0; i < count && capturingErr.output().isEmpty(); i++) {82            System.gc();83            System.runFinalization();84        }85    }86    private static class ErrorStream extends PrintStream {87        private PrintStream oldSysErr;88        public ErrorStream() {89            super(new ByteArrayOutputStream());90        }91        public void install() {92            oldSysErr = System.err;93            System.setErr(this);94        }95        public void uninstall() {96            System.setErr(oldSysErr);97        }98        public String output() {99            return new String(((ByteArrayOutputStream) out).toByteArray());100        }101    }102}...

install

Using AI Code Generation

1    private static final String[] MOCKERY_FINALIZATION_ACCEPTANCE_TESTS = new String[] {2            "package org.jmock.test.acceptance;",3            "import org.jmock.Expectations;",4            "import org.jmock.Mockery;",5            "import org.jmock.api.ExpectationError;",6            "import org.jmock.lib.legacy.ClassImposteriser;",7            "import org.junit.Test;",8            "public class MockeryFinalizationAcceptanceTests {",9            "    @Test(expected=ExpectationError.class)",10            "    public void canDetectUnmetExpectationsWhenFinalized() {",11            "        Mockery context = new Mockery();",12            "        context.setImposteriser(ClassImposteriser.INSTANCE);",13            "        final Runnable mockRunnable = context.mock(Runnable.class);",14            "        context.checking(new Expectations() {{",15            "            oneOf (mockRunnable).run();",16            "        }});",17            "        context.assertIsSatisfied();",18            "        context = null;",19            "        System.gc();",20            "    }",21            "}"22    };23    private static final String[] MOCKERY_FINALIZATION_ACCEPTANCE_TESTS_EXPECTED = new String[] {24            "package org.jmock.test.acceptance;",25            "import org.jmock.Expectations;",26            "import org.jmock.Mockery;",27            "import org.jmock.api.ExpectationError;",28            "import org.jmock.lib.legacy.ClassImposteriser;",29            "import org.junit.Test;",30            "public class MockeryFinalizationAcceptanceTests {",31            "    @Test(expected=ExpectationError.class)",32            "    public void canDetectUnmetExpectationsWhenFinalized() {",33            "        Mockery context = new Mockery();",34            "        context.setImposteriser(ClassImposteriser.INSTANCE);",35            "        final Runnable mockRunnable = context.mock(Runnable.class);",36            "        context.checking(new Expectations() {{",37            "            oneOf (mockRunnable).run();",38            "        }});",39            "        context.assertIsSatisfied();",40            "        context = null;",41            "        System.gc();",42            "    }",43            "}"44    };

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